Cutting-tube for fruit-treating machines.



H. G. GINAGA.

aa 'mme TUBE FOB. FRUIT TREATING MACHINES.

APYLIOATIOH FILED NOV. 14, 1912.

Eatented May 6, 1913.

llNllTED l we HAWAIIAN PINEAPPLE COIVLPA'HY.

A CORPORATION OF THE TERBETORY G35 CUTTING-TUBE 139B, Z'TRUIT-TEEATING nooogmo.

Specification of Letters Patent.

LTD.. GE HGNOLULU, TERRITORY OF HAXVAII,

EIANAII.

LIACE '5.

l"'atented I'ltay 6,1913.

Application filed November 14. 1912. Serial1o.731,377.

To all ir/ion/ i/ 1/11/ 7 mum/'17.:

-le it known that l, llnxu'v Hanan-1n (liNAcA, a citizen ol' the United States, residing at llonolulu, in he county of llonolulu. Territory of Hawaii. have invented certain new and uset'ul tinproveinenls in (idling-Tubes tor Fruit-'lraj-at inn Machines; and 1 do hereb declare the following to be a full. clear, and exact description ot' the invention, such as will enable others skilled in theart to which it appertains to lna use the same.

This invention relates .to the cutting tubes 0t machines l or treating 'lruit such as pine apples, and particularlv to lIllPl'UYLllit Illfi in the culling ends o'l such tubes as are used l or sizing t'rnit ol the type described in U. S. Patent So. l,i)l)o,('r l. issued tlct. i l, lllll to Lewis Arnold, 'ihese sizing tubes have V-shaped projecting knives at the cutting; end. such that the tube may be, torecd through the lruit. or the trait forced through the tube, without revolving either the tube or fruit with a shearing cut. ll heu pineapples are fed to the machines with the crown partly rei'noved and with some leaves at.- tached to the stem end, these leaves, which are ot'len very dry and tough. are not always out by the l-sha 'wd knives ot the sizing; tube, but are torn from the stern and are crowded into the crotches between :uljacent knives, or into the slots between adjacent knives or their cutting edges, with the result that said leaves are dragged along with or are pulled by the sizing tube when the latter is forced through the fruit, thus causing longitudinal grooves or indentations to be niade in the outer surtaee of the sized truit. This is not, only true of the fruit from which the leaves were torn, but of fruit subsequently treated, as the leaves accumulate in the crotehes or slots and aggravate the trouble.

The object of the present. invention is to prevent this disliguration of the sized truit. I accomplish this object by making open ings in the cutting tube rearward of the crotehes or slots, and by roundingthe rear edges of: the tube at said openings. and by making longitudinal grooves on the outer surface of the tube rearward from said openings, as will hereinafter more fully appear.

I A l.

he andthe fruit, as the kniveseut the la the accompanying drawings, forming a part of this specification, Figure 1 represents a side view of the cutting end of a sizing tube cnibodviu; a preferred form of my inveinion. Fig. is a section on the line A -l) ol 1.

Referring to the drawings, the cutting tube .l. is pr 'h?rabl v threadet. at. its rearend 2, so as to he renio ably screwed into :the reinaindm' ot the sizing tube, for the 'purpose ot easv removal. "for sharpening or re ncwal. ll-shaped knives 3 are formed 0n the cutting end of the tube 1, one cutting edge -lot each knife 3 being made longer than the cutting edge 5 on the opposite side of the V. A slot (1 is made betvem the cutting edges 4 and I} of ad acent knives The cutting, tube same as in 1 above.

A hole T is made through the tube 1 rearard of each cutting edge 4 and connecting with each slot (9, and the rear edges 8 of the tube 1 around the hole T are preferably rounded, as shown. Longitud' nilv grooves ll are cut in the outer surface of the tube 1 troin the holes 7 rearward.

In operation, when the tube engages the re: 1' end of a fruit and the cutting edges 4 and 5 tail to cut a lent, that portion of this leaf outside of the cutting edge is pushed rearward by the outer portion of the fruit and is laid back upon the outer surface of the tube. As the fruit continues to move rearward with respect to th "ube, the fold or bend in the leaf passing through the slot (3 soon engages the rounded edges 8, instead ot being pinched and bunched with other leaves in the, slot as heretofore. The frn tion of a leaf between the fruit. and the inside of the tube is practically equal to that between the. outer portion of the fruit and the outside of the tube. That portion of the leaf within the tube, however, has the advantage than it is fastened to the stem of the fruit, and it.- also has the advantage of adhesive friction in passing over the rounded lower end of the fruit within the tube. The portion of the leaf outsied the tube is therefore pulled or drawn forward. over the rounded edges 8 and into the tube, fruit moves rearward with he Arnold Patent referred to HS Lil's respect to the tube. The object in roundlng the edges of the tube 1 at the rear of as tar as thus described is the ofv the next knife, saitl tube having an openslot to the crotch between the hole 1' is'to reduce the resistance offered to the leaf in being pulled or drawn over same. The leaf beingthin and flattened out and moving withthe fruit within the tube docs not'injure or disfigure the sized fruit. The object of t e grooves 9 is to so increase the space between the tube and the outer portion of the fruit that the friction may be reduced when the portion of the leaf outside of the tube is pulled and drawn forward over the tube. 0

I claim:

l. A cutting tube provided with knives at its cutting end disposed to form a crotch between the same, said tube having an opening therein rearward of and connected by a slot to the crotch between said knives.

2. A cutting tube provided with knives at its cutting end disposed to form a crotch between the same, said tube having an opening therein rearward of and connected by a the knives, the edges of the tube at the rear of said opening being rounded." j

3. A cutting tube provided. with knives at its cutting end disposed to form a crotch between the same, said tube having an opening therein rearward of the crotch between the knives, and having a slot between the knives connected to said opening, and said .tube 'provlded with a longitudinal groove rearward from said opening.

knives at its A-cutting tube providedwith V-shaped kn ve's at its cutting end, one'edge of each knife bemg longer than the adjacent edge ing therein rearwartll-of each of the longer putting edges, the latter terminating in said opening.

5. A cuttingtube provided with'V-shaped cutting end, one edge of each ,knife being longer than the adjacent edge of'the' next knife, said tube having an openmg thei'ein'rearward of each of the longer cutting edges with the latter terminating in said 0 ening, and the rear edges of the tube of'the nextknife,

atsai opening being rounded.

6. A cutting tube provided with ll-shaped knives at' its cutting end, one edge of each knife being longer than the adjacent edge said tube having a slot between said edges, and having. an opening rearward of and connected to said slot,

and said tube provided "with longitudinal grooves rearward from said openin 7. A cutting tube provided with M -shaped knives'atthe cutting end, one edge of each' knife extendingrearward and laterally with respect-to the adjacent cutting edge of, the

8. A cutting tube provided with V-shaped knives at the cutting end, one edge of each knife extending rearward and laterallywith respect to the adjacent cutting edge of the next knife, said tube having an opening therein rearward of each of the longer cutting edges and the latter ending in'the opening and the rear edges of the tube'rounded in said opening.

9. A cutting tube providedwith V- shaped knives atthe cutting end, one edge of each knife extendingrearward and laterally with respect to the adjacent cutting edge of thenext knife, said tube having an opening therein rearward of each of thelonger cutting edges, the latter terminating in the openings, and said tube having a longitu- -dinal groove rearward from each of said openings in the outer surface of the tube.

10. A cutting tube lpagving projecting knives at the cutting end, with opposite edges disposed at an angle to each other, one edge of each knife extending rearward and laterally with respect to the adjacent edge of the adjacent knife and separated therefrom by a slot, and said tube having an opening therein rearward of and connected to each slot.

11. A cut-ting. tube having projecting knives at the cutting end, with opposite edges'disposed at an angle to each other, one edge of each knife extending rearward and laterally with respect to the adjacent edge of the adjacent knife and separated therefrom by a slot, and said tube having an opening therein rearward ofeach slot, the edges of the tube at the rear of each of said openings being rounded.

12. A cutting tube, projecting knives at the cutting end, with opposite edges disposed at an angle to each other, one edge of each knife ext-ending rearward and laterally with respect to the adjacent edge of the adjacent' knife and separated therefrom by a slot, said tube having an opening therein rearwai l "of each slot, and said tube provided with a longitudinal groove rearward from each openin In testimony w ereof I afiix my 'signature, ih presence of two witnesses.

HENRY GABRIEL GINACAi Witnesses:

Roar. J. PRATT, ARTHUR F. EWART. 

